package top.atluofu.common.exception;

/**
 * @ClassName: UserNameExistException
 * @description: TODO
 * @author: 有罗敷的马同学
 * @datetime: 2022Year-11Month-24Day-11:45
 * @Version: 1.0
 */
public class UserNameExistException extends RuntimeException {
    public UserNameExistException() {
        super("用户名已存在");
    }
}
